:root {
  --primary: #2c3e50;
  --accent: #3498db;
  --accent2: #9b59b6;
  --success: #27ae60;
  --danger: #e74c3c;
  --bg: #f0f2f5;
  --card: #ffffff;
  --border: #dde3ec;
  --text: #2c3e50;
  --muted: #7f8c8d;
  --nav-h: 60px;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── NAV ── */
nav {
  background: var(--primary);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.2);
}

nav .logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-right: auto;
  letter-spacing: .5px;
}

nav a {
  color: rgba(255,255,255,.75);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: .9rem;
  transition: background .15s, color .15s;
}

nav a:hover, nav a.active {
  background: rgba(255,255,255,.15);
  color: #fff;
}

/* ── LAYOUT ── */
main { padding: 24px; max-width: 1400px; margin: 0 auto; }

h1 { font-size: 1.5rem; margin-bottom: 20px; color: var(--primary); }
h2 { font-size: 1.1rem; margin-bottom: 12px; color: var(--primary); }

/* ── CARD ── */
.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}

/* ── FORM ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid.single { grid-template-columns: 1fr; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: .85rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.field input, .field select, .field textarea {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 9px 12px;
  font-size: .95rem;
  color: var(--text);
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
  width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(52,152,219,.15);
}
.field input[type="color"] { height: 42px; padding: 4px 8px; cursor: pointer; }
.field textarea { resize: vertical; min-height: 80px; }

.form-actions { margin-top: 20px; display: flex; gap: 10px; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px;
  border: none; border-radius: var(--radius);
  font-size: .9rem; font-weight: 600; cursor: pointer;
  transition: filter .15s, transform .1s;
  text-decoration: none;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { filter: brightness(1.1); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: 5px 10px; font-size: .8rem; }

/* ── PLANNING HEADER ── */
.planning-controls {
  display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
}
.month-nav { display: flex; align-items: center; gap: 8px; }
.month-label {
  font-size: 1.1rem; font-weight: 700; min-width: 160px; text-align: center; color: var(--primary);
}

/* ── PLANNING TABLE ── */
.planning-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }

table.planning {
  border-collapse: collapse;
  min-width: 100%;
  font-size: .82rem;
  background: #fff;
}

table.planning th, table.planning td {
  border: 1px solid var(--border);
  text-align: center;
  white-space: nowrap;
}

table.planning thead th {
  background: var(--primary);
  color: #fff;
  padding: 8px 4px;
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 10;
}
table.planning thead th.col-company {
  min-width: 140px;
  text-align: left;
  padding-left: 12px;
  position: sticky;
  left: 0;
  z-index: 20;
  background: var(--primary);
}

table.planning thead th.weekend {
  background: #3d5166;
}

table.planning tbody td.col-company {
  text-align: left;
  padding: 6px 12px;
  font-weight: 600;
  background: #f8f9fb;
  position: sticky;
  left: 0;
  z-index: 5;
  min-width: 140px;
  border-right: 2px solid var(--border);
}

table.planning tbody td.day-cell {
  padding: 2px;
  min-width: 34px;
  max-width: 34px;
  height: 46px;
  vertical-align: middle;
  position: relative;
}

table.planning tbody td.day-cell.weekend {
  background: #f5f7fa;
}

table.planning tbody tr:hover td { background: #eef4fb; }
table.planning tbody tr:hover td.col-company { background: #e8f0fb; }

/* ── PLANNING BLOCKS ── */
.plan-block {
  border-radius: 4px;
  padding: 2px 4px;
  font-size: .72rem;
  font-weight: 700;
  color: #fff;
  text-overflow: ellipsis;
  overflow: hidden;
  cursor: pointer;
  display: block;
  width: 100%;
  text-align: center;
  line-height: 1.3;
  transition: filter .15s;
}
.plan-block:hover { filter: brightness(1.12); }

/* ── LEGEND ── */
.legend {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px;
}
.legend-item {
  display: flex; align-items: center; gap: 6px;
  font-size: .85rem; padding: 4px 10px;
  background: #fff; border-radius: 20px;
  border: 1px solid var(--border);
}
.legend-dot { width: 14px; height: 14px; border-radius: 3px; flex-shrink: 0; }

/* ── LIST ── */
.list-table { width: 100%; border-collapse: collapse; }
.list-table th {
  background: var(--bg);
  border-bottom: 2px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .4px;
  color: var(--muted);
}
.list-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
}
.list-table tr:last-child td { border-bottom: none; }
.list-table tr:hover td { background: #f8fafd; }

.color-chip {
  display: inline-block;
  width: 20px; height: 20px;
  border-radius: 4px;
  vertical-align: middle;
  border: 1px solid rgba(0,0,0,.1);
}

/* ── ALERT ── */
.alert {
  padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px;
  font-size: .9rem; display: none;
}
.alert.show { display: block; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ── EMPTY ── */
.empty {
  text-align: center; padding: 40px 20px; color: var(--muted);
}
.empty svg { margin-bottom: 10px; opacity: .4; }

/* ── MODAL ── */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.45); z-index: 200;
  align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff; border-radius: var(--radius);
  padding: 28px; width: 90%; max-width: 480px;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
  animation: popIn .15s ease;
}
@keyframes popIn { from { transform: scale(.93); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal h3 { margin-bottom: 16px; color: var(--primary); }
.modal-actions { margin-top: 20px; display: flex; gap: 10px; justify-content: flex-end; }

/* ── TODAY ── */
th.today-col { background: #1a6fa8 !important; }
td.today-col { background: #eaf4ff !important; }

@media (max-width: 600px) {
  .form-grid { grid-template-columns: 1fr; }
  nav .logo { font-size: 1rem; }
  nav a { padding: 6px 8px; font-size: .8rem; }
}